<pre>  /**
     */
    @Override
    protected Widget createTab() {
        final LabelForm panel = new LabelForm();

        panel.add(new LabelTextBox("Champs 1"));

        panel.add(new LabelTextBox("Champs 2", true));

        panel.addSubmitButton("Envoyer");
        panel.addResetButton("Réinitialiser");
        panel.addValidateButton("Valider");
        panel.addButton("Un bouton");
        panel.addSubmitHandler(new FormPanel.SubmitHandler() {

            public void onSubmit(SubmitEvent event) {
                Info.display("Submit : " + panel.getValues());
            }

        });
        
        return panel;
    }

</pre>